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    Wyświetlanie 1-4 z 4
    Tytuł:
    Wpływ pokarmu na imagines chrabąszczy Melolontha melolontha i M. hippocastani
    Effects of food source quality on the adults of Melolontha melolontha and M. hippocastani
    Autorzy:
    Woreta, D.
    Lipiński, S.
    Wolski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1295010.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    entomologia lesna
    szkodniki roslin
    chrabaszcz majowy
    Melolontha melolontha
    chrabaszcz kasztanowiec
    Melolontha hippocastani
    owady dorosle
    przyrost masy ciala
    przezywalnosc
    dlugosc zycia
    plodnosc
    pokarm
    preferencje pokarmowe
    forest cockchafer
    common cockchafer
    forest pests
    relative growth rate
    mortality
    food quality
    Opis:
    This paper presents the results of studies on the life span, survival, weight and fecundity of the forest cockchafer (Melolontha hippocastani, Fabricius, 1801) and the common cockchafer (Melolontha melolontha, Linnaeus, 1758) beetle feeding on Alnus glutinosa (L.) Gaertn., Betula pendula Roth., Carpinus betulus L., Fagus sylvatica L., Larix decidua Mill., Prunus serotina (Ehr.) Borkh., Quercus petraea (Matt.) Liebl., Quercus robur L., Robinia pseudoacacia L., Sambucus nigra L. and Sorbus aucuparia L. em. Hedl. The lifespan and weight of beetles as well as female fertility were examined in 2011 and 2013. Specimen for laboratory tests were collected in the field shortly after leaving their overwintering sites in the soil and identical experimental protocols were applied to both examined species. 576 and 432 beetles were tested in 2011 and 2013, respectively. In 2011, beetles were feeding on A. glutinosa, B. pendula, F. sylvatica, L. decidua Q. petraea leaves and on C. betulus, P. serotina, R. pseudoacacia, S. aucuparia and S. nigra in 2013. Both years, beetles feeding on Q. robur leaves were examined as a control. Our results showed that feeding on leaves of Q. robur and Q. petraea had the largest positive impact on the life time, weight and fecundity of the studied beetles. Leaves of F. sylvatica and L. decidua also constituted an adequate food source for the development of M. melolontha. M. hippocastani, however, did not perform as well when feeding on these two tree species. Females of M. melolontha reared on leaves of B. pendula did not lay eggs. The following plant species had a negative impact on the survival and development of the collected specimen and female fertility: A. glutinosa, S. nigra, P. serotina and R. pseudoacacia. Neither beetle species fed on the leaves of A. glutinosa or S. nigra.
    Źródło:
    Leśne Prace Badawcze; 2016, 77, 1
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in antioxidant enzyme activities in Pinus sylvestris and Larix decidua seedlings after Melolontha melolontha attack
    Autorzy:
    Skwarek, M.
    Patykowski, J.
    Witczak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1292552.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    coniferous species
    defense
    cockchafer
    superoxide dismutase
    peroxidases
    Opis:
    Plants are constantly exposed to the influence of biotic and abiotic stress factors that significantly affect the induction of resistance responses. Biotic factors include bacteria, fungi and insects such as the common cockchafer (Melolontha melolontha) that harm many tree species, including pine and larch. The adult beetles damage needles, while the larvae (grubs) feed on roots. The aim of the experiment was to determine how plants cope with the damage caused by these insects. The activity of antioxidant enzymes such as peroxidase (POD) and superoxide dismutase (SOD) were determined three and six weeks after the insect-induced damage and the results show that the peroxidase activity, as measured with guaiacol (GPOD), was higher in the damaged roots of larch. The POD activity measured with syringaldazine (SPOD) was slightly higher in damaged pine needles as well as pine roots. SOD activity was higher in the damaged roots of both species as compared to the needles. It is believed that changes in the activity of POD and SOD as well as the presence of another form of SOD in the roots of larch, indicate direct involvement of these enzymes in the plants’ response to damage caused by M. melolontha.
    Źródło:
    Leśne Prace Badawcze; 2017, 78, 2
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Możliwości wykorzystania rodzimych populacji nicieni entomopatogennych w zwalczaniu pędraków chrabąszczowatych (Melolonthinae)
    Potential of autochthonic population of entomopathogenic nematodes in application to control of cockchafer grubs (Melolonthinae)
    Autorzy:
    Matuska-Łyżwa, J.
    Huruk, S.
    Wiatr, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/126513.pdf
    Data publikacji:
    2012
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    nicienie entomopatogenne
    pędraki chrabąszczowate
    Steinernema
    Galleria mellonella
    Melolonthinae
    entomopathogenic nematodes
    cockchafer grubs
    Opis:
    Podczas przeprowadzonych badań faunistycznych odłowiono z terenu Polski nicienie entomopatogenne. Długość i szerokość geograficzną analizowanych stanowisk występowania nicieni oznaczono za pomocą programu komputerowego Gnomon. Próby glebowe, z których wyizolowano nicienie, zostały zbadane pod względem fizykochemicznym (całkowita zawartość ołowiu(II), pH oraz podgrupa granulometryczna). Nicienie wyizolowano z próbek glebowych w warunkach laboratoryjnych, metodą Beddinga i Akhursta (1975). Badane nicienie oznaczono za pomocą klucza do oznaczania gatunku (Lacey 1997) oraz za pomocą analiz molekularnych. Do doświadczeń wykorzystano larwy pędraków chrabąszczowatych odłowionych z terenów województwa świętokrzyskiego, na których obecnie notuje się gradację tego szkodnika. Nicienie pochodzące z tego terenu charakteryzują się dużą aktywnością biologiczną względem pędraków chrabąszczowatych.
    During faunistic studies entomopathogenic nematodes were isolated from samples selected in territory of Poland. Latitude and longitude of the sampling site was determined with the Gnomon software. Physico-chemical properties of samples were also performed. Nematodes were isolated from the soil samples in the laboratory conditions, using method described by Bedding and Akhurst (1975). Selected nematodes were determined using the key for the determination of the species (Lacey 1997) and by molecular analysis. For investigations were used grubs of cockchafer (Melolonthinae) isolated from areas of the Świętokrzyskie province, Poland, where at present there has been a gradation of this pest. It was shown that autochthonic nematodes have significant biological activity against cockchafer grubs present in the territory of Poland.
    Źródło:
    Proceedings of ECOpole; 2012, 6, 1; 293-296
    1898-617X
    2084-4557
    Pojawia się w:
    Proceedings of ECOpole
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of sawdust amendment on forest soil fungal community and infestation by cockchafers
    Autorzy:
    Kwasna, H.
    Malecka, M.
    Sierota, Z.
    Jaworski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/41429.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    sawdust amendment
    Scotch pine
    pine wood
    forest soil
    fungi community
    infestation
    cockchafer
    larva
    Melolontha melolontha
    forest cockchafer
    Melolontha hippocastani
    Opis:
    Effects of Scots pine wood amendment on the fungal community in forest soil infested with cockchafers and foraged or non-foraged by wild boars and hares were investigated. We hypothesized that sawdust amendment would increase the abundance of entomopathogenic and insect-associated species effective in cockchafer predation. The soil dilution method and morphotyping were used for fungal isolation and identification in order to quantify and qualify the viable components of the microbiota that are important for evaluating soil functions. There was usually increased abundance and decreased diversity of soil fungi one year after sawdust amendment. Application of pine sawdust more often increased than decreased the abundance of some insect-associated fungi or dermatophytes and keratinophilic species and decreased the number of cockchafer larvae. Abundance of Geomyces pannorum, Mortierella spp. + M. luteus, Pseudogymnoascus roseus, Tolypocladium inflatum and Trichoderma koningii increased, at least locally, whilst Chrysosporium merdarium, Penicillium spp. (including the most common P. citrinum, P. daleae and P. janczewskii), Sporothrix schenckii and Trichoderma spp. decreased. Application of pine sawdust under roots of 1-year-old Scots pine seedlings significantly increased the abundance of Phoma + Pyrenochaeta spp. in neighbouring soil, thus increasing the risk from Phoma blight. Trichoderma strigosum was among the dominants (frequency >5%). Another six and two Trichoderma species were among the subdominants (frequency 1–5%) and subrecedents (frequency <1%), respectively. Dermatophytes, coprophilous and keratinophilic species, e.g. Cephalotrichum, Chrysosporium merdarium or S. schenckii, occurred only or mostly in foraged plots. The altered communities resulting from pine sawdust amendment may contribute to biological control of the cockchafer larvae.
    Źródło:
    Dendrobiology; 2016, 75
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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